How Many People Can a 4 Stall Restroom Trailer Handle?
Four stalls means four people can go at once, which keeps lines short at weddings, festivals, and job sites with mixed crews. Waukesha Porta Pros sizes these against OSHA 1926.51(c), the construction sanitation ratio, when the trailer serves a work crew rather than guests. For a wedding or backyard event, the useful ceiling is more about flow than a strict headcount: four stalls plus a short wait beats one bank of standard porta potty rental units every time. If you're planning something bigger, step up to the 8 stall restroom trailer; for something tighter, the 2 stall restroom trailer fits a small crew or a short home job listed under home renovation porta potty needs. Not sure which size fits your guest count? Run the numbers on our how many porta potties do I need guide before you book.
What Does a 4 Stall Restroom Trailer Cost in Waukesha?
Trailer pricing depends on duration, finish level, and whether it's an event weekend or a longer job. Here's where a 4 stall trailer typically lands against other trailer rental windows:
| Duration | Low | Typical | High |
|---|---|---|---|
| Day | $175 | $800 | $2,500 |
| Weekend | $900 | $2,000 | $3,000 |
| Week | $150 | $1,397 | $1,650 |
| Event | $2,499 | $3,500 | $3,899 |
Delivery adds a separate fee, usually $100 to $150 for a weekend and higher for longer holds; ask about that up front on your request a quote call. If you want the full cost breakdown across all trailer sizes, our restroom trailer rental cost page walks through it. Compare it against a standard unit's day rate on the porta potty rental cost page, or check monthly porta potty rental pricing if you need something for a longer construction stretch instead of an event weekend.
Is a 4 Stall Restroom Trailer Right for My Event or Site?
It depends on foot traffic and whether guests expect climate control and running water. A restroom trailer beats a standard unit for weddings and corporate events because it has real sinks, sometimes AC, and doors wider than a typical portable unit, which matters for ADA Standards 404.2.3's 32 inch minimum clear opening. Waukesha venues hosting weddings, golf outings, or fairs lean toward trailers for guest comfort; see wedding restroom rental, golf tournament restrooms, and county fair restrooms for event-specific setups. Construction crews in Waukesha more often stick with construction site services and standard units to meet OSHA 1926.51(c) at lower cost per stall. If your event needs showers too, add a shower trailer rental, and if you want a higher finish tier, look at the luxury restroom trailer option. Need power on site for the trailer's pump and lights? Pair it with a temporary power pole or a light tower rental for evening events.
How far in advance should I book a 4 stall restroom trailer?
Book 2 to 4 weeks out for weekends, longer for peak wedding season or big festivals. Waukesha Porta Pros fills weekend slots fast in warmer months. If your date is close, check emergency porta potty rental for faster turnaround alternatives.
Does a 4 stall restroom trailer need a level surface?
Yes. It needs firm, level ground per ADA Standards 302.1 for stable footing, plus clearance for delivery. Gravel, pavement, or packed dirt all work if it's flat and dry.
Can I get an ADA accessible stall in a 4 stall trailer?
Some 4 stall units include one ADA-compliant stall meeting the 60 inch turning circle under ADA Standards 304.3.1. Confirm this when booking. If not available, add a standalone ADA accessible porta potty unit alongside it.
What's included in the rental price?
Delivery, setup, pickup, and one servicing are standard. Extra service visits, generator rental, or extended holds cost more. Waukesha events near New Berlin, 8.2 miles southeast, or Brookfield, 9.4 miles northeast, may see delivery fees vary by distance.
Do I need a permit for a restroom trailer in Waukesha?
Placement rules depend on whether it sits on private property or the public right of way, and that needs confirming with the City of Waukesha. See porta potty permit requirements before your event date.

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